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  3. Mineral Resource Data System (MRDS)

Candelaria Mine

Plant in Mineral county in Nevada, United States with commodities Gold, Silver
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Production statistics
  16. Reserves and resources
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10197974
MRDS ID W016422
MAS/MILS ID 0320210476
Record type Site
Current site name Candelaria Mine
Alternate or previous names Candelaria Partners Mine and Plant, Pit Names:, Lucky Hill, Mount Diablo, Northern Belle 0320210372
Related records 10072147, 10310430

Geographic coordinates

Point of reference Pit
Geographic coordinates: -118.08814, 38.14883 (WGS84)
Elevation 1889
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Mineral(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Candelaria(quadrangle 1:24,000 scale)

Excelsior Mountains(quadrangle 1:100,000 scale)

Walker Lake(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Fish Lake-Soda Spring Valleys(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Mineral

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 004 N 035 E 33 N2N2 Nevada

Commodities

Commodity Importance
Gold Secondary
Silver Primary

Materials information

Materials Type of material
Chalcopyrite Unknown
Clay Unknown
Dolomite Unknown
Galena Unknown
Gold Unknown
Jamesonite Unknown
Jarosite Unknown
Limonite Unknown
Pyrite Unknown
Silver Unknown

Nearby scientific data

Pit (1) -118.08814, 38.14883
ListMap

Economic information

Ore body information

  • Strike N45E
    Dip 58N
    Thickness 130M
    Length 1220M
    Width 40M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SILICIFICATION
    Strike And Dip N45E:58N
    Date of Last Modification 830714
  • Area 1620HA
    Field Value
    Total Surface Area (HA) 1620
    Date of Last Modification 910418

Comments on the geologic information

  • MINERALIZATION OCCURS AS FINELY DIVIDED SILVER WITH MINOR AMOUNTS OF GOLD. OVER 22 DIFFERENT SILVER MINERALS HAVE BEEN IDENFIFIED BY OCCIDENTAL GEOLOGISTS. MUCH OF THE SILVER IS ENCAPSULATED IN SILICA. FEW CLAYS ARE PRESENT AND VERY LITTLE MERCURY EXISTS.
  • A DEEPER ORE BODY OF MASSIVE SULFIDES HAS BEEN TENTATIVELY IDENTIFIED. THE ORE BODIES OCCUR IN AN EAST TRENDING VEIN SYSTEM THAT GENERALLY PARALLELS THE BEDDING IN THE SHALE OF THE CANDEL- ARIA. THE ORE BODY IS ELONGATE IN SHAPE, AND IS CONFINED TO THE CHERTY FELSITE AND ARGILLITE OF THE LOWER PART OF THE CANDELARIA FM. GENERAL SIZE OF ORE BODY: MEDIUM

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Deposit size Medium
Significant Yes
Discovery year 1863
Mining method Open Pit
Year of first production 1980
Plant type Leach
Milling method Heap Leach-Merrill-Crowe

Mining district

District name Candelaria District

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Located Claim

Land status

Ownership category Mixed

Ownership information

  • Type Owner-Operator
    Owner Kinross Gold Corp.
    ID 2600419
    Interest 100
    Home office Utah
    Year 1997
    First year 1994

Production statistics

  • Year 1980
    Description 90 Gm Ag/Mt And .28 Gm Au/Mt Ore 1086000 Tonnes Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 90g/mt
    Trace Ore Gold Gold 0g/mt
  • Year 1981
    Description 90 Gm Ag/Mt And .28 Gm Au/Mt Ore 1534000 Tonnes Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 0g/mt
    Trace Gold Gold 90g/mt
  • Year 1982
    Description 90 Mg Ag/Mt And 0.28 Gm Au/Mt Ore 646000 Tonnes Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 90g/mt
    Trace Ore Gold Gold 0g/mt
  • Year 1982
    Description Silver Production 33970 Kg Silver/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 33970000g
  • Year 1983
    Description Ore Production 1793000 Tonnes Ore/Year
  • Year 1983
    Description Silver Production 46650 Kg Silver/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 46650000g
  • Year 1984
    Description Ore Production 2268000 Tonnes Ore/Year
  • Year 1984
    Description Silver Production 83970 Kg Silver/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 83970000g
  • Year 1991
    Description Gold 2870 Oz
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Gold Gold 89266.99g
  • Year 1991
    Description Silver 1697260 Oz
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 52790694.16g
  • Year 1994
    Description Silver 110000 Kg/Mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 110000000g
  • Year 1994
    Description Gold 434 Kg/Mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Gold Gold 434000g
  • Year 1995
    Description Ore Milled 3321000 Mt
  • Year 1995
    Description Silver 2845000 T Oz
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 88489403.44g
  • Year 1995
    Description Gold 10649 Tr Oz
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Gold Gold 331220.96g
  • Year 1996
    Description Gold 15030 Tr Oz
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Gold Gold 467485.31g
  • Year 1996
    Description Ore Milled 3929990 Mt
  • Year 1996
    Description Silver 3862000 Tr Oz
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 120121643.62g
  • Year 1997
    Description Gold Expected Production 12000 Tr Oz
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Gold Gold 373241.77g
  • Year 1997
    Description Silver Expected Production 3000000 Tr Oz
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 93310443g

Comments on the production information

  • PLANT THROUGHPUT IS RATED AT 1,814,000 MTPY BUT ADDITIONAL WORKING SHIFTS COULD BE USED TO INCREASE THIS THROUGHPUT. OPERATIONS TYPICALLY PROCEED ON THE FOLLOWING SCHEDULE: PRIMARY CRUSHING 1-2SHIFTS/DAY, 5DAYS/WEEK SECONDARY CRUSHING, 2-3SHIFTS/DAY, 5 DAYS/WEEK AGGLOMERATION, TRUCK LOADOUT AND HEAP CONSTRUCTION LEACHING AND MERRILL- 3 SHIFTS/DAY, 7 DAYS/WEEK CROWE PRECIPITATION PLANT SILVER REFINERY 1 SHIFT/DAY 5 DAYS/WEEK
  • PRODUCTION: INITIAL; AUG.,1980- JUNE,1982, BY OCCIDENTAL; LAST; AUG.,1983,ONGOING BY NERCO; PAST; 8389 KG AG 1980, 52100 KG AG & 280 KG AU 1981; ANNUAL; APPROXIMATELY 53000 KG AG & 280 KG AU APRIL THROUGH SEPTEMBER.

Reserves and resources

  • Type In-situ
    Estimate year 1984
    Measured 9072000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 43.2 g/mt Silver Major 1984
  • Type In-situ
    Estimate year 1995
    Measured 9668000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.14 g/mt Gold Minor 1995
    Silver Ag 49.58 g/mt Silver Major 1995
  • Type In-situ
    Estimate year 1995
    Inferred 6148000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.23 g/mt Gold Minor 1995
    Silver Ag 225.15 g/mt Silver Major 1995
  • Type In-situ
    Estimate year 1996
    Measured 11507000mt ore
    Indicated 9777000mt ore
    Demonstrated 21284000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.15 g/mt Gold Minor 1996
    Silver Ag 134.78 g/mt Silver Major 1996
  • Type In-situ
    Estimate year 1997
    Measured 1270000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.18 g/mt Gold Minor 1997
    Silver Ag 60.44 g/mt Silver Major 1997
  • Type In-situ
    Estimate year 1997
    Inferred 9777000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.15 g/mt Gold Minor 1997
    Silver Ag 144.44 g/mt Silver Major 1997
  • Type In-situ
    Estimate year 1997
    Measured 1270000mt ore
    Demonstrated 1270000mt ore
    Inferred 9777000mt ore
    Total resources 11047000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.16 g/mt Gold Minor 1997
    Silver Ag 137.54 g/mt Silver Major 1997

Comments on the reserve resource information

  • 1995 FORM 40-F, P. 15. 1995: ON 8/27/96, PHONED BILL HOFER AT MINE: MINE HAS LESS THAN 2 YEARS LEFT. THE "DEEP DIABLO ZONE" IS POTENTIAL UG MINE, BUT ECONOMICS ARE NOT GOOD AND CANDELARIA METALLURGY IS NOT GOOD. FEB. 1997: PHONED GENERAL MANAGER AT MINE, JEFF BUTWELL, WHO SAID THERE WERE A FEW MILLION TONS UNDERGROUND THAT THEY MIGHT BE ABLE TO DEVELOP AND MINE UNDERGROUND AT $8/OZ. 4/97: FROM 1996 AR, MINE SCHEDULED TO BE CLOSED MAY 1997. RECOVERY OF METAL FROM LEACH PAD NO. 2 WILL CONTINUE FOR SEVERAL YEARS AT GREATLY REDUCED OVERALL OPERATING COSTS. INDICATED RESOURCES INCLUDE 9,777,000 MT OF "DRILL INDICATED" RESOURCES, AVERAGING 0.15G/MT AU, AND 144.44G/MT AG; THESE INCLUDE "DRILL INDICATED RESOURCES," "UNMINED (GREEN NICK DEPOSIT)," AND TWO LOW-GRADE STOCKPILES. FEB. 1997: RESOURCES ARE REMAINING RESERVES AS OF 12/31/96 (1,800,000 ST) + "A FEW MILLION TONS UNGERGROUND" (FROM THE GEN. MGR.) = 1.8 + 3 = 4.8MST = 4.4MMT. GRADES REPORTED ARE THE GRADES OF THE 1.8MST RESERVES: AG-52.87 G/ST; AU-0.2 G/ST. SEE THE "ANNUAL STATUS AND PRODUCTION REPORT" PREPARED BY CANDELARIA FOR THE NEVADA DIV. OF MINERALS, JAN. 15, 1997. THIS INFORMATION SEEMS TO DIVERGE QUITE A BIT FROM THE KINROSS 1996 ANNUAL REPORT:

Workings at the site

  • Type of workings Surface
    Area 1620HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Percent Waste Rock 99.9
    Primary Material Cover M-HARD ROCKS
    Hardness of Ore HARD ROCKS
    Avg. Bench Height (meters) 6
    Capacity 7260
    Capacity Units MT ORE/DAY
    Unit Production Cost 3.7
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 1
    Year of Information 1983

Comments on other economic factors

  • MILL: ON-SITE,ACTIVE,7300 T/D LEACH FACILITY

Reference information

Bibliographic references

  • Reserve-Resource

    ENGINEERING AND MINING JOURNAL. THIS MONTH IN

  • Reserve-Resource

    MINING: U.S. - NEVADA. THE CANDELARIA SILVER PROPERTIES.

  • Reserve-Resource

    V. 181, NO. 1, 1980, P. 158.

  • Reserve-Resource

    MINING ACTIVITY DIGEST. NEW DEVELOPMENT HIGHLIGHTS,

  • Reserve-Resource

    THE CONTRIBUTION OF METALS OPERATIONS. ENG. AND MIN. J.

  • Reserve-Resource

    INT. DIRECTORY, V. 9, NO. 2, 1982, P. 1.

  • Reserve-Resource

    NERCO, INC. 1984 FORM 10-K, P. 8.

  • Reserve-Resource

    KINROSS GOLD CORPORATION 1994 ANNUAL REPORT, PP. 1, 15.

  • Reserve-Resource

    KINROSS 1995 ANNUAL REPORT, PP. 1, 19.

  • Reserve-Resource

    KINROSS 1995, FORM 40-F, PP. 4, 15.

  • Reserve-Resource

    MINING RECORD. V 105/N37. 9/14/94. P.16.

  • Reserve-Resource

    KINROSS 1996 ANNUAL REPORT, P 24, 25

  • Reserve-Resource

    FEB. 1997: ANNUAL STATUS AND PRODUCTION REPORT, NEVADA

  • Reserve-Resource

    DIVISION OF MINERALS (SENT TO US BY JEFF BUTWELL,

  • Reserve-Resource

    CANDELARIA'S GENERAL MANAGER.

  • Deposit

    BIG SKY PAY DIRT (BISBEE, AZ). NEVADA'S HISTORIC

  • Deposit

    CANDELARIA MINING DISTRICT IS AGAIN PRODUCING SILVER.

  • Deposit

    JANUARY 1981, PP. 28-29.

  • Deposit

    CHAMBERLAIN, P. D. HEAP LEACHING AND PILOT TESTING

  • Deposit

    OF GOLD AND SILVER ORES. PAPER IN PAPERS GIVEN AT THE

  • Deposit

    PRECIOUS-METALS SYMPOSIUM, SPARKS, NEVADA,

  • Deposit

    NOVEMBER 17-19, 1980. NV BUREAU OF MINES AND GEOL.

  • Deposit

    REP. 36, 1983, PP. 77-83.

  • Deposit

    CHAMBERLAIN, P. G., AND M. G. POJAR. GOLD AND SILVER

  • Deposit

    LEACHING PRACTICES IN THE UNITED STATES. BUMINES IC 8969,

  • Deposit

    47 PP.

  • Deposit

    CLISBY, H. NEVADA'A PRECIOUS METALS PICTURE LOOKING

  • Deposit

    BETTER ALL THE TIME. BIG SKY PAYDIRT (BISBEE, AZ),

  • Deposit

    NO. 36, SEPT. 1983, PP. 21A- 25A.

  • Deposit

    COCA MINES, INCORP. ANNUAL REPORT, 1982-1983, 8 PP.

  • Deposit

    ELKO (NV) DAILY FREE PRESS. NEVADA MINES ACQUIRED BY

  • Deposit

    NERCO, INC. FEB. 11, 1983, P. 11.

  • Deposit

    ENGINEERING AND MINING JOURNAL. 45 TOP U.S. SILVER

  • Deposit

    MINES AND 27 LEADING U.S. SILVER MINING COMPANIES. V. 183,

  • Deposit

    NO. 6, 1982, P. 15.

  • Deposit

    FERGUSON, H. G., S. W. MULLER, AND S. H. CATHCART.

  • Deposit

    GEOLOGY OF THE MINA QUADRANGLE, NEVADA. U.S. GEOL. SURV.

  • Deposit

    GEOL. QUAD. MAP GQ-45, 1954, SCALE 1:250,000.

  • Deposit

    GARSIDE, L. J. AND H. F. BONHAM, JR. ROAD LOG/TRIP

  • Deposit

    GUIDE: CANDELARIA MINE, GOLDFIELD DISTRICT, TONOPAH

  • Deposit

    DISTRICT, AND BELL MOUNTAIN MINE, FIELD TRIP 4, PRECIOUS

  • Deposit

    METAL DISTRICTS IN WEST-CENTRAL NEVADA. PAPER IN

  • Deposit

    EXPLORATION FOR ORE DEPOSITS OF THE NORTH AMERICAN

  • Deposit

    CORDILLERA, FIELD TRIP GUIDEBOOK, ED. BY J. L. JOHNSON.

  • Deposit

    SYMP. OF ASSOC. EXPL. GEOCHEM., RENO, NV,

  • Deposit

    MAR. 25-28, 1984, PP. FT4 1-27.

  • Deposit

    INTERMOUNTAIN PAYDIRT (BISBEE, AZ). NEVADA'S

  • Deposit

    HISTORIC CANDELARIA MINING DISTRICT IS AGAIN PRODUCING

  • Deposit

    SILVER. NO. 15, DEC. 1980, PP. 6, 12.

  • Deposit

    INTERMOUNTAIN PAYDIRT (BISBEE, AZ). OXYMIN SHUTS

  • Deposit

    DOWN CANDELARIA MINE AS SILVER DROPS BELOW $6. NO. 32,

  • Deposit

    MAY 1982, P. 1.

  • Deposit

    LEWIS, A. LEACHING AND PRECIPITATION TECHNOLOGY FOR

  • Deposit

    GOLD AND SILVER ORES. ENG. AND MIN. J., V. 184,

  • Deposit

    NO. 6, 1983, PP. 48-56.

  • Deposit

    . GOLD AND SILVER CYANIDATION PLANT PRACTICE,

  • Deposit

    V. II. AIME, 1981, 263 PP.

  • Deposit

    MINING ACTIVITY DIGEST. NEW DEVELOPMENT HIGHLIGHTS:

  • Deposit

    CEREMONIES TOOK PLACE OCTOBER 7 TO MARK THE REOPENING OF

  • Deposit

    THE CANDELARIA SILVER MINE. ENG. AND MIN. J. INT.

  • Deposit

    DIRECTORY, V. 10, NO. 6, 1983, P. 2.

  • Deposit

    MINING JOURNAL (LONDON). MINING WEEK. UNITED

  • Deposit

    STATES. OFFICIAL REOPENING OF CANDELARIA SILVER MINE. V.

  • Deposit

    301, NO. 7731, 1983, P. 294.

  • Deposit

    MINING RECORD (DENVER). OCCIDENTAL MINERALS

  • Deposit

    DEVELOPING TWO NEVADA SILVER PROPERTIES. V. 92,

  • Deposit

    NO. 20, 1980, PP. 3.

  • Deposit

    NEVADA MINING ASSOCIATION (RENO). NERCO MAKES BID

  • Deposit

    FOR TWO LARGE PRECIOUS METAL MINES IN NEVADA. NV. MIN.

  • Deposit

    ASSOC. BULL., V. 7, NO. 1, 1983, PP. 12-13.

  • Deposit

    NEVADA MINING ASSOCIATION (RENO). NERCO REOPENS

  • Deposit

    NATION'S LARGEST OPEN PIT SILVER MINE. NV MIN. ASSOC.

  • Deposit

    BULL., V. 8, NO. 1, 1984, P. 15.

  • Deposit

    PAGE, B. M. GEOLOGY OF THE CANDELARIA MINING

  • Deposit

    DISTRICT, MINERAL COUNTY, NEVADA. NV BUREAU OF MINES AND GEOL.

  • Deposit

    BULL. 56, 1959, 67 PP.

  • Deposit

    ROSS, D. C. GEOLOGY AND MINERAL DEPOSITS OF MINERAL

  • Deposit

    COUNTY, NEVADA. NV BUREAU OF MINES AND GEOL. BULL. 58, 1961,

  • Deposit

    98 PP.

  • Deposit

    ROSS, D. M. ENVIRONMENTAL PITFALLS OF HARD-ROCK

  • Deposit

    MINING IN THE WEST. PROCEEDINGS FROM A SYMPOSIUM ON GOLD

  • Deposit

    (APR. 21-24, 1980), 6 PP.; AVAILABLE FROM MACKAY SCHOOL OF

  • Deposit

    MINES, UNIV. NV, RENO.

  • Deposit

    SKILLINGS' MINING REVIEW. FIRST SILVER POURED AT

  • Deposit

    CANDELARIA MINE IN NEVADA. V. 70, NO. 7, 1981, P. 23.

  • Deposit

    SKILLINGS' MINING REVIEW. NERCO AGREES TO ACQUIRE

  • Deposit

    OXYMIN FROM OCCIDENTAL PETROLEUM. V. 72, NO. 1, 1983,

  • Deposit

    P. 7.

  • Deposit

    STATE OF NEVADA. DIRECTORY OF NEVADA MINE OPERATIONS

  • Deposit

    ACTIVE DURING CALENDAR YEAR 1978. DEP. IND. RELATIONS, NV.

  • Deposit

    DIV. MINE INSP., 1979, P. 40.

  • Deposit

    ACTIVE DURING CALENDAR YEAR 1982. DEP. IND. RELATIONS, NV

  • Deposit

    DIV. MINE INSP., 1983, 60 PP.

  • Deposit

    STEELE, G. L. CANDELARIA: FAMOUS SILVER PRODUCER

  • Deposit

    REACTIVATED AFTER 100 YEARS. MIN. ENG. (NY), V. 33,

  • Deposit

    NO. 6, 1981, PP. 658-660.

  • Deposit

    WALLACE (ID) MINER. OXYMIN SHUTS DOWN CANDELARIA.

  • Deposit

    JUNE 24, 1982, P. 4.

  • Deposit

    WALLACE (ID) MINER. OXYMIN SHUTS DOWN CANDELARIA

  • Deposit

    MINE AS SILVER DROPS BELOW $6. JULY 22, 1982, P. 2.

  • Deposit

    WATSON, B. N. LARGE LOW GRADE SILVER DEPOSITS IN N.

  • Deposit

    AMERICA. WORLD MIN., V. 30, NO. 3, 1977, PP. 44-49.

  • Deposit

    WATSON, B. N. BULK TONNAGE, LOW-GRADE SILVER

  • Deposit

    DEPOSITS - UPDATE 1980. NV BUREAU OF MINES AND GEOL. REP. 36,

  • Deposit

    1983, PP. 36-41.

  • Deposit

    KINROSS GOLD CORPORATION 1993 ANNUAL REPORT.

  • Deposit

    KINROSS GOLD CORPORATION 1994 ANNUAL REPORT, PP. 1-2,15-17.

  • Deposit

    1995/96 NEVADA MINES DIRECTORY, PP13, 22.

  • Deposit

    KINROSS GOLD CORPORATION 1995 ANNUAL REPORT, PP. 1, 19; &

  • Deposit

    FORM 40-F REPORT, PP. 4, 15.

  • Deposit

    RANDOL MINING DIRECTORY, 1996/1997, U.S. MINES & MINING

  • Deposit

    COMPANIES, P235.

General comments

Subject category Comment text
Environmental Factors HEAP NEUTRALIZATION BY RINSING BECAUSE PRECIPITATION IS GREATER THAN EVAPORATION. DO NOT EXPECT METEORIC WATER TO PASS THROUGH PADS AFTER CLOSURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 08-OCT-97 Buckingham, David A. U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Nevada resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.